Baker's dozen is a period 12 oscillator consisting of a loaf hassled by two blocks and two caterers . The original form (using period 4 and period 6 oscillators to do the hassling) was found by Robert Wainwright in August 1989 .

By rephasing and moving the caterers, it is possible to get a 37-cell variant. Using mazings would also work.

```
x = 11, y = 21, rule = B3/S23
b3o$5bo$o4bo$4bo$b2o$bo$bo$bo2$4b2o3b2o$2o2bobo3bo$2o3bo$5bo$9bo$9bo$
9bo$8b2o$6bo$5bo4bo$5bo$7b3o!
#C [[ THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ AUTOSTART GPS 12 LOOP 13 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 320 ]]
```

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It can be stabilised and welded in many ways. A caterer can be used in 2 ways, one way is also suitable for the jam . A mazing would work, and two can be stabilised next to each other. 2 opposite ones can be stabilised with 2 bookends (shown as bookend on snake ) in the lifeviewer.

```
x = 35, y = 28, rule = B3/S23
25bo$24b2ob2o$24b5o$8bob2ob2obo7b2o$8b2obobob2o8bo2$8b3o3b3o6bobo$8bo
2bobo2bo7bo$10b2ob2o13bo$5bo13bo7bobo2b2o$2o2bobo11bobo2b2o2bo2bob2o$
2obo2bo2b2o3b2o2bo2bob2o3b2o$4b2o3b2o3b2o3b2o2$31bo$31bo$4b2o3b2o5b2o
3b2o7b2obo$2obo2bo2b2o5b2o2bo2bob2o6b2o$2o2bobo13bobo2b2o3bo$5bo15bo8b
2o$29b2o$8b3o7bo10b3o$8b3o7bo$6b2o2b3o3bob2o$6b2o7b2o3bo$6b3o10bobo$8b
o9bo2bo$8bo10b2o!
#C [[ THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ AUTOSTART GPS 12 LOOP 13 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 360 ]]
```

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